26 lines
729 B
Python
26 lines
729 B
Python
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import time
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from board import *
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from pulseio import *
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# Setup BLUE and RED LEDs as PWM output (default frequency is 500 Hz)
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ledb = PWMOut(LED2)
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ledr = PWMOut(LED1)
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# Set the BLUE LED to have a duty cycle of 5000 (out of 65535, so ~7.5%)
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ledb.duty_cycle = 5000
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# Setup pin A0 as a standard PWM out @ 50% to test on the oscilloscope.
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# You should see a 50% duty cycle waveform at ~500Hz on the scope when you
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# connect a probe to pin A0
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a0 = PWMOut(A0)
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a0.duty_cycle = int(65535/2)
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# Constantly pulse the RED LED
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while True:
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for i in range(100):
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ledr.duty_cycle = int(i / 100 * 65535)
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time.sleep(0.01)
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for i in range(100, -1, -1):
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ledr.duty_cycle = int(i / 100 * 65535)
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time.sleep(0.01)
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